一种压缩机及制冷设备

By adaptively adjusting the oil suction volume using floating components, the problem of high oil output rate at high frequencies in variable frequency rolling rotor compressors is solved, enabling effective oil suction at different frequencies and ensuring the reliability and performance of the compressor.

CN115788892BActive Publication Date: 2026-07-17ZHUHAI LANDA COMPRESSOR +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHUHAI LANDA COMPRESSOR
Filing Date
2022-11-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Variable frequency rolling rotor compressors have a high oil output rate when operating at high frequency. When refrigeration oil enters the system, it reduces the heat exchange performance and leads to early oil shortage and wear of the compressor.

Method used

Design a floating component, including a floating part and a limiting part. The centrifugal force of crankshaft rotation and the buoyancy of oil create an oil passage with a variable flow area between the floating part and the limiting part, which adaptively adjusts the oil suction volume to meet the oil demand at different frequencies.

Benefits of technology

The compressor adaptively adjusts the oil suction volume at different frequencies to avoid oil shortage, improve oil suction efficiency, ensure smooth exhaust during high and low frequency operation, reduce the amount of refrigerant entering the oil sump, and improve compressor reliability and performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明涉及一种压缩机及制冷设备。压缩机包括:壳体,具有内部腔室和位于内部腔室底部的油池;曲轴,安装于内部腔室中,且曲轴下端伸入油池中;浮动组件,设置于油池中,位于曲轴的下方,浮动组件包括浮动件及限位件,限位件固定于壳体,限位件包括限位部,限位部设置有过油孔,浮动件位于限位部下方,浮动件能够在曲轴旋转离心力及油池内的油液浮力的作用下相对限位件上下浮动以靠近或者远离限位部,使浮动件与限位部之间形成与所述过油孔连通且流通面积可变的流通通道。本发明压缩机在运行不同频率时进行自适应调整吸油时油液的流通面积,满足对不同频率下油液吸油量问题。同时,浮动件具有一定体积,将油池底部油液向上抬升,使油液更易吸出。
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